▪ US Patent No. 9,416,942 (Wooshin MS Co., Ltd.)
발명의 명칭: Method for manufacturing light emitting knob
1. A method for manufacturing a light emitting knob comprising: a metal plate processing step of forming a light blocking metal plate in a cap shape including a closed upper part and a lower part having an upwardly recessed surface area; a display groove forming step of forming a light emitting display groove in the upwardly recessed surface area of the light blocking metal plate; a resin layer coupling step of forming to couple a resin layer to the upwardly recessed surface area of the light blocking metal plate such that the light emitting display groove is filled and coupled with the resin layer; and a display window forming step of cutting an upper surface of the light blocking metal plate such that the resin layer coupled into the light emitting display groove is exposed from an upper surface of the light blocking metal plate to form a light emitting display window.
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